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Finding the Fourth Proportional to 630.05, 869.49 and 350.29

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Solution

The fourth proportional to 630.05, 869.49 and 350.29 is: 483.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    630.05 : 869.49 = 350.29 : x
  2. Step 2: Convert to fraction form
    630.05/869.49 = 350.29/x
  3. Step 3: Cross multiply
    630.05x = 869.49 × 350.29
  4. Step 4: Simplify right side
    630.05x = 304,573.65
  5. Step 5: Solve for x
    x = 304,573.65/630.05
  6. Step 6: Final answer
    x = 483.41

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.